Inner dust bag for vacuum cleaners



M. J. KAMPF INNER DUST BAG FOR VACUUM CLEANERS April 20 1926.

Filed 001:. 20, 1924 W842? Z mmbf cleaner, generally designated at Patented Apr. 20, 1926.

UNITED STATES IABEL J. KAIPF, OI HOLLYWOOD, CELIFOBNIL.

nmnn nus'r nae ron vacuum crimmms Application filed October 20, 1924. Serial no. 744,809.

To all whom it may concern:

'Be it known that I, MABEL' J. KAMPF,

a citizen of the United States, residing at Hollywood, in the county of Los Angeles and State of California, have invented new and. useful Improvements in Inner Dust Bags for Vacuum Cleaners, of which the following is a specification.

This invention relates to improvements in vacuum cleaners.

In the construction of the majority of vacuum cleaners, the air carrying dust and dirt is directed into a removable dust bag, in which the dust is collected. When the dust bag is partially filled with dust and dirt, it 1s adapted to be removed from the cleaner and the dirt shaken therefrom. This operation is dirty and usually requires a con siderable amount of shaking of the bag, and consequent scattering of the dust and. dirt results.

It is therefore an object of this invention to provide an inner dust bag or limng bag for the dust bag upon a vacuum cleaner, which lining bag receives the dirt and dust; and upon removal of the lining bag from the dust bag upon the vacuum cleaner, the dust and dirt may easily and quickly be taken out with it.

' A further object of this invention is to provide a lining bag for the dust bag upon vacuum cleaners which will be easily, simply and cheaply constructed so that the bags ma be marketed for a reasonable amount and may be destroyed after'having been removed from the dust bag upon the vacuum cleaner. v

-With the foregoing and other objects in view whichwill be made manifest in the following detailed descriptionand pointed reference is had outin the appended claim,

for an. illusto the accompanying drawi trative embodiment, of t 0 wherein:

Figure 1 is a side elevation cleaner to which the improved hmng 'bag has been applied, the dust bag and the lining bag being shown in sed'ion;

ig. 2 is a to plan view of the improved lining bag; an

Fig. 3 is a side elevation of the fining bag,

parts being shown in section. z

Referring to the accompanying drawings wherein similar reference characters designate similar parts throughout 10, which invention,

of a vacuumthe vacuum is mounted upon wheels 11, may be oi any conventional construction. As is customary v with many vacuum cleaners, a pivoted handle 12 is provided which is adapted to support the upper end of a dust bag 13 by means of atsprmg 14, or an equivalent flexlble elemen The dust bag 13 is usually formed of a. closely woven fabric and is provided with a collar 15 secured about its neck, which collar is provided with a flange 17 which is a companion to the flange 18 formed upon the cleaner body. The dust bag 13 is secured to the cleaner 10 by securing together the companion flanges 17 and 18, as indlcated at 19. IVhen' the dust bag 13 has been filled with dirt and dust, the fastening means, indicated at 19, may be removed and the dust Lnay 1Inge poured out of the neck of the dust improvement over this construction resides in applying an inner bag indicated at 20, which bag may be formed of paper or similar material and may be formed in any suitable manner to provide a reduced neck 21 and a tapered closed end 22. A ring 23 of relatively stiflt' cardboard is secured to the neck 21 of the bag 20 by passing the neck throu h the ring and having the edgesof the nec glued or otherwise secured to the ring 23. As shown in Fig. 1', thering '23 provides an annular flange upon the neck of the bag, which flange is adapted to be retained between the companion flanges 17 and 18. The air entering the dust bag 13 is made, or of any other material suitable for this construction, permits the air enter-' ing the bag to pass therethrough and through the fabric dust bag 13.

be unfastene from each other and the lining bag When the lining bag 20 has been filled or partially filled with dirt, the com anion removed, carrying w1th it the dust and dirt retained therein. This permits the dust bag 13 to be easily and quickly cleaned. Be-.

cause of the cheapness of the material of' which the lining bag 20 is constructed, the lining bag with the dirt therein may be destroyed and a new lining bag may be used within the dust bag 13 upon further use'of the vacuum cleaner.

It is seen that the lining bag accomplishes a number of useful results, residing in easily and quickly cleaning the dust bag 13 without shaking or scattering the dust and dirt therein. The tapered end'22 of the lining bag is so. formed that this end may at commodate itself so as to fit snugly Within theupper end of the dust bag 13. The general shagie of the bag 20 is so formed as to snugly t against the'interior surface of the fabric dust'bag 13.

It Will be understood that various changes in the detail of the construction may be-made without departing from the spirit or scope of the invention as defined by the appended c aim.

I claim:

In combination with the dust bag of a vacuum cleaner, a paper lining bag removably positioned in said dust bag, said lining bag having a tapered neck, and a ring formed of relativel stiff material through which the neck on tiie bag extends, the edges of the neck on the bag being secured to the a ring whereby the ring provides a relatively stiff flange on the neck of the bag adapted to be positioned between the companion flanges on the dust bag and on the cleaner.

In testimony whereof I have signed my name to this specification.-

- MABEL J. KAMPF. 

